Error: Nothing to play in switch container

Question

Hi there,

 

I am having an issue where when a switch container with in a switch container is selected to play in UE4 it comes up with an error saying 'Nothing to play' I am unsure what is causing this as the states work fine when testing in Wwise but even after regenerating sound banks in UE4 and Wwise it does not work.

 

Thanks!